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La Dehesa

This page provides information on La Dehesa, a concentrating solar power (CSP) project, with data organized by background, participants, and power plant configuration.

Status Date: March 20, 2017
Project Overview
Project Name: La Dehesa
Country: Spain
Location: La Garrovilla
Owner(s): Renovables SAMCA (100%)
Technology: Parabolic trough
Turbine Capacity: Net: 49.9 MW Gross: 49.9 MW
Status: Operational
Start Year: 2011

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Technology: Parabolic trough
Status: Operational
Country: Spain
City: La Garrovilla
Region: Badajoz
Lat/Long Location: 38°57′ 6.14″ North, 6°27′ 48.36″ West
Land Area: 200 hectares
Source of Solar Resource: La Dehesa Weather Station
Electricity Generation: 175,000 MWh/yr (Estimated)
Contact(s): Javier del Pico; Carlos Tierra
Company: Renovables SAMCA
Break Ground: July 2008
Start Production: February 2011
Construction Job-Years: 950
Annual O&M Jobs: 45
PPA/Tariff Information: RD661/07, POOL+premium option


Developer(s): Renovables SAMCA
Owner(s) (%): Renovables SAMCA (100%)
EPC Contractor: Not applicable (several contractors)
Operator(s): Renovables SAMCA

Plant Configuration

Solar Field

Solar-Field Aperture Area: 552,750 m²
# of Solar Collector Assemblies (SCAs): 672
# of Loops: 168
# of SCAs per Loop: 4
SCA Aperture Area: 822 m²
SCA Length: 150 m
# of Modules per SCA: 12
SCA Manufacturer (Model): Ingemetal (SAMCA-Trough)
Mirror Manufacturer: Rioglass
# of Heat Collector Elements (HCEs): 24,192
HCE Manufacturer (Model): Schott (PTR70)
Heat-Transfer Fluid Type: Diphenyl/Biphenyl oxide
Solar-Field Inlet Temp: 298°C
Solar-Field Outlet Temp: 393°C
Solar-Field Temp Difference: 95°C

Power Block

Turbine Capacity (Gross): 49.9 MW
Turbine Capacity (Net): 49.9 MW
Turbine Manufacturer: Siemens (Sweden)
Output Type: Steam Rankine
Power Cycle Pressure: 100.0 bar
Cooling Method: Wet cooling
Turbine Efficiency: 38.13% @ full load
Annual Solar-to-Electricity Efficiency (Gross): 13.81%

Thermal Storage

Storage Type: 2-tank indirect
Storage Capacity: 7.5 hour(s)
Thermal Storage Description: 29,000 tons of molten salt. 60% sodium nitrate, 40% potassium nitrate.